The Golden Rectangle and Serengeti, Tanzania, Africa

Successive Golden Rectangles dividing a Golden Rectangle into squares (Serengeti, Tanzania, Africa).

A golden rectangle is a rectangle whose side lengths are in the golden ratio, one-to-phi, that is, approximately 1:1.618. A distinctive feature of this shape is that when a square section is removed, the remainder is another golden rectangle, that is, with the same proportions as the first. Square removal can be repeated infinitely, which leads to an approximation of the golden or Fibonacci spiral.

Fibonacci numbers (0,1,1,2,3,5,8,13,21,34...) are a sequence of numbers named after Leonardo of Pisa, known as Fibonacci. The first number of the sequence is 0, the second number is 1, and each subsequent number is equal to the sum of the previous two numbers of the sequence itself.

The Serengeti ecosystem is located in north-western Tanzania and extends to south-western Kenya between latitudes 1 and 3 S and longitudes 34 and 36 E. It spans some 30,000 km. The Serengeti hosts the largest and longest overland migration in the world, a semi-annual occurrence. This migration is one of the ten natural travel wonders of the world. The region contains several national parks and game reserves. Serengeti is derived from the Maasai language, Maa; specifically "Serengit", meaning "Endless Plains".